CVE-2020-28339: Welcart E-Commerce

High severity, CVSS 8.8. EPSS: 1.9% chance of exploitation in the next 30 days.

The usc-e-shop (aka Collne Welcart e-Commerce) plugin before 1.9.36 for WordPress allows Object Injection because of usces_unserialize. There is not a complete POP chain.

Affected products

• Welcart Welcart E-Commerce: before 1.9.36 (fixed in 1.9.36)

Published 2020-11-07. Last modified 2026-06-17.